Device for testing water elastic performance of underwater rotary propeller-shaft system

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Device for testing water elastic performance of underwater rotary propeller-shaft system

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LI JIASHENG / ZHANG ZHENGYI / LIU ZENG / SONG LEI / JIN XIN / LI JIE

The invention belongs to the related technical field of ship hydroelastic mechanics or fluid-solid coupling mechanics tests, and discloses a device for testing water elastic performance of an underwater rotary propeller-shaft system which comprises a motor, a torque thrust rotating speed test system and an electromagnetic exciter which are arranged in an open water tank; one end of the rotating shaft is arranged in the open water tank, the motor is arranged at the end of the rotating shaft, and the torque thrust rotating speed testing system and the electromagnetic exciter are arranged in the rotating shaft. The propeller is arranged at the other end of the rotating shaft, acceleration sensors are arranged on blades of the propeller and the rotating shaft, and the acceleration sensors are output to a data processing computer through a conductive slip ring at the end of the rotating shaft; the open water tank, the rotating shaft and the propeller are arranged on the trailer. Limitation of a traditional propeller scale is avoided, the test device which better accords with the actual propeller operation state is designed, and then accurate testing of the hydroelastic performance of the propeller-shaft system can be achieved through cooperation of the installed sensor and the vibration exciter.

本发明属于船舶水弹性力学或流固耦合力学试验相关技术领域，其公开了一种水下旋转螺旋桨‑轴系统水弹性性能试验装置，装置包括：敞水箱内设有电机、扭矩推力转速测试系统以及电磁激励器；转轴的一端设于敞水箱内，电机设于转轴的端部，扭矩推力转速测试系统和电磁激励器设于转轴中；螺旋桨设于转轴的另一端，螺旋桨的桨叶以及转轴上设有加速度传感器，加速度传感器通过转轴端部的导电滑环输出至数据处理计算机；敞水箱、转轴以及螺旋桨设于拖车上。本申请避免传统螺旋桨尺度的限制，设计更加符合实际螺旋桨运行状态的试验装置，进而可以通过安装传感器和激振器配合实现螺旋桨‑轴系统水弹性性能的精确测试。

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Title :

Device for testing water elastic performance of underwater rotary propeller-shaft system

Additional title:

一种水下旋转螺旋桨-轴系统水弹性性能试验装置

Contributors:

LI JIASHENG (author) / ZHANG ZHENGYI (author) / LIU ZENG (author) / SONG LEI (author) / JIN XIN (author) / LI JIE (author)

Publication date :

2021-12-31

Type of media :

Patent

Type of material :

Electronic Resource

Language :

Chinese

Classification :

IPC:

B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen